Remembrance + Mortuary + Goblin Bombardment + Shield Sphere

Remembrance

Mortuary

Goblin Bombardment

Shield Sphere

How it works

1. Activate Goblin Bombardment by sacrificing Shield Sphere.
2. When Shield Sphere dies, Mortuary and Remembrance trigger.
3. Resolve the Mortuary trigger, putting Shield Sphere from your graveyard on top of your library.
4. Resolve the Remembrance trigger, searching your library for Shield Sphere and putting it into your hand.
5. Resolve the Goblin Bombardment ability, dealing 1 damage to any target.
6. Cast Shield Sphere by paying 0.
7. Repeat.

This loop relies on an ingenious interplay between recycling mechanics to turn free fodder into relentless damage. You begin by using Goblin Bombardment to sacrifice Shield Sphere, triggering a cascade where both Mortuary and Remembrance step in: Mortuary places the sphere neatly back on top of your library, while Remembrance immediately searches your library to put another copy right into your hand. Because Shield Sphere has a mana cost of zero, you can recast it for free every single iteration, ready to be sacrificed all over again.